The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 12, 2005
Filed:
Sep. 17, 1998
Roy Harold Mauger, Radlett, GB;
Julian Frank Barry Cable, Bishops Stortford, GB;
Clive Colin Hayball, Sawbridgeworth, GB;
Roy Harold Mauger, Radlett, GB;
Julian Frank Barry Cable, Bishops Stortford, GB;
Clive Colin Hayball, Sawbridgeworth, GB;
Nortel Networks Limited, St. Laurent, CA;
Abstract
To ensure an effective mechanism for disaster recovery, system migration and network enlargement, a communication system (FIG.) comprises a narrowband-to-broadband interface () having a plurality of network adaptors () interconnected to a switch () that provides access to a plurality of virtual channels () supported by a broadband network. The plurality of network adaptors () are also coupled to a plurality of trunks () that each support at least one of a plurality of different communication functions. At least two call servers () are independently coupled to the narrowband-to-broadband interface () and are arranged to control interconnection of trunks to virtual channels, while each of the at least two call servers is responsible for controlling interconnections of group of trunks that share a common communication function within each group. Communication system functionality is therefore separated between the at least two call servers.